Like the Appmon, still don't like the Appli Driver, because Rei is boring and has no personality besides "I want my brother back, look at me I'm edgy!" ...Also, still think it's kinda stupid he gave up Mailmon. Like, I get it - he's a Seven code, but now you only have two System-type Appmon who get make it to Super Grade, and at this point in the show, he's the LAST person to get his Ultimate Grade. If he would have kept Mailmon, not only would he have had some diversity on his team, BUT he would have had a SEVEN CODE APPMON. Sure, it's powerful isn't as strong as, say Raidramon, but IT'S STILL A SEVEN CODE. He barely shows up anyway, so just have Mailmon on him until the other six have been assembled; then when the time is right, throw in Mailmon and BOOM you got Dantemon. Wreck shop, spin the barrels, and bust up some Leviathan ass - I just went on a giant rant about how flawed Rei is by episode 20, didn't I?